CVE-2026-23515: critical vulnerability in signalk-server
RCE - Command Injection in Signal K set-system-time plugin
Published · Updated
28Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 10epss 4.6%
exploitation probability
4.6%top 8% of all CVEs
observed exploitation
nono source reports it
Signal K Server is a server application that runs on a central hub in a boat. Prior to 1.5.0, a command injection vulnerability allows authenticated users with write permissions to execute arbitrary shell commands on the Signal K server when the set-system-time plugin is enabled. Unauthenticated users can also exploit this vulnerability if security is disabled on the Signal K server. This occurs due to unsafe construction of shell commands when processing navigation.datetime values received via WebSocket delta messages. This vulnerability is fixed in 1.5.0.
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
Affected products
SignalK · signalk-serverRelated CVEs — signalk-server
In the same product, most dangerous first.
CVE-2025-66398CRITICALSignal K Server has Unauthenticated State Pollution leading to Remote Code Execution (RCE)EPSS 19.9%CVE-2025-68273MEDIUMSignal K Server Vulnerable to Unauthenticated Information Disclosure via Exposed EndpointsEPSS 0.8%CVE-2025-68619HIGHSignal K Server Vulnerable to Remote Code Execution via Malicious npm PackageEPSS 0.7%CVE-2025-68272HIGHSignal K Server Vulnerable to Denial of Service via Unrestricted Access Request FloodingEPSS 0.6%CVE-2025-68620CRITICALSignal K Server vulnerable to JWT Token Theft via WebSocket Enumeration and Unauthenticated PollingEPSS 0.5%CVE-2026-25228MEDIUMSignalK Server has Path Traversal leading to information disclosureEPSS 0.4%